JPS54122214A - Preparation of paraformaldehyde - Google Patents

Preparation of paraformaldehyde

Info

Publication number
JPS54122214A
JPS54122214A JP2890278A JP2890278A JPS54122214A JP S54122214 A JPS54122214 A JP S54122214A JP 2890278 A JP2890278 A JP 2890278A JP 2890278 A JP2890278 A JP 2890278A JP S54122214 A JPS54122214 A JP S54122214A
Authority
JP
Japan
Prior art keywords
paraformaldehyde
stabilizer
molded
adsorption
rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2890278A
Other languages
Japanese (ja)
Other versions
JPS5623412B2 (en
Inventor
Mitsuo Iida
Minoru Saito
Toshio Koike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP2890278A priority Critical patent/JPS54122214A/en
Publication of JPS54122214A publication Critical patent/JPS54122214A/en
Publication of JPS5623412B2 publication Critical patent/JPS5623412B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the high quality title compound having no tackiness, high fluidity, high solubility and improved handleability, by mixing a stabilizer as vapor in air or in an inert gas, and letting the stabilizer to contact with molded paraformaldehyde, thereby increasing the rate of adsorption of the stabilizer in the paraformaldehyde.
CONSTITUTION: An aqueous solution of dilute formaldehyde is concentrated and then solidified by cooling in a molding machine to give a molded paraformaldehyde. A stabilizer, e.g. ammonia, a lower aliphatic amine etc., is vaporized and mixed to air or an inert gas, and the molded paraformaldehyde is treated with the diluted stabilizer.
EFFECT: The concentration of the stabilizer in the gas is low, because its rate of adsorption to molded paraformaldehyde is extremely high. Thus the molded paraformaldehyde is prevented from getting non-uniform in quality and getting wet. The time for the treatment can be shortened, and the stability of the product is high.
COPYRIGHT: (C)1979,JPO&Japio
JP2890278A 1978-03-14 1978-03-14 Preparation of paraformaldehyde Granted JPS54122214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2890278A JPS54122214A (en) 1978-03-14 1978-03-14 Preparation of paraformaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2890278A JPS54122214A (en) 1978-03-14 1978-03-14 Preparation of paraformaldehyde

Publications (2)

Publication Number Publication Date
JPS54122214A true JPS54122214A (en) 1979-09-21
JPS5623412B2 JPS5623412B2 (en) 1981-05-30

Family

ID=12261330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2890278A Granted JPS54122214A (en) 1978-03-14 1978-03-14 Preparation of paraformaldehyde

Country Status (1)

Country Link
JP (1) JPS54122214A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997034941A1 (en) * 1996-03-20 1997-09-25 Hoechst Celanese Corporation Addition of amine to improve paraformaldehyde
US7604462B2 (en) 2005-01-19 2009-10-20 Denso Corporation High pressure pump having plunger
US8176024B2 (en) 2005-08-30 2012-05-08 Konica Minolta Business Technologies, Inc. Information apparatus connected to information terminal having a plurality of applications installed thereinto, control method of the same, and program product
CN112714773A (en) * 2018-09-28 2021-04-27 国际人造丝公司 Ammonia and ammonium hydroxide stabilizers for paraformaldehyde

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997034941A1 (en) * 1996-03-20 1997-09-25 Hoechst Celanese Corporation Addition of amine to improve paraformaldehyde
US7604462B2 (en) 2005-01-19 2009-10-20 Denso Corporation High pressure pump having plunger
US7635257B2 (en) 2005-01-19 2009-12-22 Denso Corporation High pressure pump having plunger
US8052404B2 (en) 2005-01-19 2011-11-08 Denso Corporation High pressure pump having plunger
US8052405B2 (en) 2005-01-19 2011-11-08 Denso Corporation High pressure pump having plunger
US8176024B2 (en) 2005-08-30 2012-05-08 Konica Minolta Business Technologies, Inc. Information apparatus connected to information terminal having a plurality of applications installed thereinto, control method of the same, and program product
CN112714773A (en) * 2018-09-28 2021-04-27 国际人造丝公司 Ammonia and ammonium hydroxide stabilizers for paraformaldehyde
US20220033559A1 (en) * 2018-09-28 2022-02-03 Celanese International Corporation Ammonia and ammonium hydroxide stabilizers for paraformaldehyde
US11897996B2 (en) * 2018-09-28 2024-02-13 Celanese International Corporation Ammonia and ammonium hydroxide stabilizers for paraformaldehyde

Also Published As

Publication number Publication date
JPS5623412B2 (en) 1981-05-30

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